The body’s urge to urinate occurs about 20 minutes after drinking water as a physiological regulatory effect. Especially if the environment is cold or if a large amount of water is consumed at once, it can lead to a significant urge to urinate within a certain period of time. If there is a physiological urge to urinate after drinking water and a relatively large amount of urine is discharged, this is normal. However, under the influence of other factors, such as psychological factors, such as taking exams, cold environment and fright, psychological stimulation and excitement that lead to urination, it may be a physiological transient regulation, as long as there are no obvious symptoms of discomfort, there is no need for special concern. If the urge to urinate is obvious after drinking a small amount of water, and the urge to urinate occurs repeatedly and frequently throughout the day, and the volume of urine is relatively small each time you urinate, it may be frequent urination. Patients should have their urine routine checked to clarify whether there is a possibility of urinary tract infection.